998260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:136

約数の個数: 48

約数和(自身を含む): 2298240

約数和(自身を除く): 1299980

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 71, 74, 76, 95, 142, 148, 185, 190, 284, 355, 370, 380, 703, 710, 740, 1349, 1406, 1420, 2627, 2698, 2812, 3515, 5254, 5396, 6745, 7030, 10508, 13135, 13490, 14060, 26270, 26980, 49913, 52540, 99826, 199652, 249565, 499130, 998260]

約数ペア:

[(1, 998260), (2, 499130), (4, 249565), (5, 199652), (10, 99826), (19, 52540), (20, 49913), (37, 26980), (38, 26270), (71, 14060), (74, 13490), (76, 13135), (95, 10508), (142, 7030), (148, 6745), (185, 5396), (190, 5254), (284, 3515), (355, 2812), (370, 2698), (380, 2627), (703, 1420), (710, 1406), (740, 1349)]